1052340344221 has 2 divisors, whose sum is σ = 1052340344222. Its totient is φ = 1052340344220.

The previous prime is 1052340344191. The next prime is 1052340344243. The reversal of 1052340344221 is 1224430432501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 953815923225 + 98524420996 = 976635^2 + 313886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052340344221 - 2¹³ = 1052340336029 is a prime.

It is a super-2 number, since 2×1052340344221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1052340044221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526170172110 + 526170172111.

It is an arithmetic number, because the mean of its divisors is an integer number (526170172111).

Almost surely, 2^{1052340344221} is an apocalyptic number.

It is an amenable number.

1052340344221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052340344221 is an equidigital number, since it uses as much as digits as its factorization.

1052340344221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1052340344221 its reverse (1224430432501), we get a palindrome (2276770776722).

The spelling of 1052340344221 in words is "one trillion, fifty-two billion, three hundred forty million, three hundred forty-four thousand, two hundred twenty-one".